new spark plugs: rough idle
10-10-2006, 03:44 PM
#1
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new spark plugs: rough idle
well just picked up some denso iridium power ik20 today, and now my 1.8t is having a rougher idle and just feeling sluggish.
no coilpack problems, just got the new "R" coil packs in a couple of months ago due to a failure of an original coilpack.
sometime it feels as though a cylinder isnt working quite well.. maybe the plug is bad?
i checked the gap and it was to what the denso site said for my car.
picked them up because they're rated one range colder than stock.
car is revo chipped, and now the new plugs feel like ****, im pretty close to putting the old ones back in, it ran better with the old plugs in.
is there something i am overlooking?
no coilpack problems, just got the new "R" coil packs in a couple of months ago due to a failure of an original coilpack.
sometime it feels as though a cylinder isnt working quite well.. maybe the plug is bad?
i checked the gap and it was to what the denso site said for my car.
picked them up because they're rated one range colder than stock.
car is revo chipped, and now the new plugs feel like ****, im pretty close to putting the old ones back in, it ran better with the old plugs in.
is there something i am overlooking?
10-10-2006, 04:04 PM
#3
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Re: Check it out-
so, i should go back to the NGKs? is there a place that'll have them for a good price? or should i wait and see if the ecu re-adapts to the new plugs? how long would that take?
10-10-2006, 05:15 PM
#4
The plugs should run flawless from the get go....
However somethings not right, and you must back-track to try a figure out the problem.
Reinstalling the OEm spark-plugs maybe used to trouble-shoot the problem.
Check your coil-packs, and their connectors.
Reinstalling the OEm spark-plugs maybe used to trouble-shoot the problem.
Check your coil-packs, and their connectors.
10-10-2006, 08:45 PM
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Re: The plugs should run flawless from the get go....
yeah, im probably just going to get some ngk copper plugs, and have to change them more often.. whats a good interval to change them at?
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10-10-2006, 10:26 PM
#9
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Your plugs show dry foul--
can be caused by carbon deposits, Air/fuel mixture too rich, electrical problem, extended periods of low speed driving, or plug heat range too cold.
Show us a picture of the plugs you removed.
Copper plugs are the best and cheapest--you just have to replace them often.
Show us a picture of the plugs you removed.
Copper plugs are the best and cheapest--you just have to replace them often.
